Publications Details

Microgrid Cyber Security Reference Architecture (V.1.0)

Veitch, Cynthia K.; Henry, Jordan M.; Richardson, Bryan T.; Hart, Derek

This document summarizes the on-going cyber security work and resulting cyber security reference architecture for a secure microgrid control system network. The architecture pre sented here provides guidelines and security recommendations for the implementation of a secure microgrid control system at Department of Defense (DOD) installations. The mi crogrid is designed using the Energy Surety MicrogridTM (ESM) methodology developed by Sandia National Laboratories (SNL). Microgrids developed using the ESM methodology demonstrate— • increased reliability for critical mission loads resulting from the interconnection of electrical generation assets using the existing distribution network • reduced reliance on diesel-generated backup power through the use of renewable energy sources during outages • increased efficiency of diesel backup generators through careful, coordinated operation across the microgrid system • reduced operational risk through a strong focus on cyber security The design of a microgrid control system needs to be more robust than that of a traditional industrial control system (ICS) for the following reasons: • The microgrid is used in emergency situations and may be critical to continuity of operations of an installation. • The microgrid must function during active attack by a capable adversary. As such, the traditional design and implementation for an ICS may not be sufficient for implementing a robust and secure microgrid.